[PAID] Artist/animator needed for mock iphone game project

I need a skilled animator/artist to help me mock up some screenshots of an iphone game for a university project. Basically I need a few simple characters mocked up, 3 levels(the same layout but a different colour) and the odd menu and message screen. Also, translate that style into a few small iphone and digital banner advertisements.

This is all about the execution so anyone who can create a simple style(angrybirds/doodlejump) to a high standard and quite quickly would be perfect.